JP4537146B2 - Cutting equipment such as trees for hydraulic excavators - Google Patents
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- JP4537146B2 JP4537146B2 JP2004226712A JP2004226712A JP4537146B2 JP 4537146 B2 JP4537146 B2 JP 4537146B2 JP 2004226712 A JP2004226712 A JP 2004226712A JP 2004226712 A JP2004226712 A JP 2004226712A JP 4537146 B2 JP4537146 B2 JP 4537146B2
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Description
本発明は、樹木等の切断に使用される油圧ショベル用樹木等の切断装置に関する。 The present invention relates to a cutting device for a hydraulic excavator tree or the like used for cutting a tree or the like .
従来、この種の切断装置には、特開２００２−１９９８２０号公報の第２図に示すように、切断刃をハサミ状に使用して全刃に瞬間的な圧力を加えて切断していたので、切断力不足や刃こぼれが生じやすい欠点があった。また、切断の際、樹木等が切断刃に附着することが多く、再切断のため、その除去は人力によらざるを得ない欠点があった。 Conventionally, in this type of cutting apparatus, as shown in FIG. 2 of Japanese Patent Laid-Open No. 2002-199820, a cutting blade is used in a scissors shape, and cutting is performed by applying instantaneous pressure to all the blades. There were drawbacks that cutting force was insufficient and blade spillage was likely to occur. Further, when cutting, trees and the like are often attached to the cutting blade, and because of recutting, there is a drawback that the removal must be done by human power.
また、切断装置に油圧シリンダを内蔵して、切断刃を駆動する方式を採用しているので、油圧ショベルから油圧を、電磁弁、フレキシブルチューブ、ロータリージョイト、多岐な配管等を介して供給を受けるため、コスト高になる、取扱いが不便、故障が起こりやすい、保守管理が面倒であるなどの欠点があった。 In addition, since the cutting device incorporates a hydraulic cylinder and drives the cutting blade, hydraulic pressure is supplied from the excavator via a solenoid valve, flexible tube, rotary joint, various piping, etc. Therefore, there are disadvantages such as high cost, inconvenience in handling, easy failure, and troublesome maintenance management.
そこで本発明者は、切断刃の回動を、油圧ショベルのバケットシリンダの四節リンク機構と、刃背部のてこ作用により駆動して強力な切断力を得ると共に、切断刃の側面に本体から突出させて固着した剛性の大きいストッパを設け、切断刃の上昇時に切断した樹木等を強力に除去して再切断を容易にできるようにして上記問題点を解決した。
さらに、切断刃を円弧状に形成した鋸刃の刃先を鋭く形成すると共に、強力な切断力と切断時の強度を切断刃部に与えることに成功した。
Furthermore, the cutting edge of the saw blade having a circular arc shape was sharply formed, and a strong cutting force and strength at the time of cutting were successfully given to the cutting blade portion.
本発明は、被切断物の樹木等に強力な切断力を順次的に与えて切断できるようにした油圧ショベル用樹木等の切断装置を提供するものである。
また、本発明は、切断刃にかみ込んだ樹木等の附着する附着物や切断部分を、人力を使わず自動的に除去して再切断を容易にできるようにした油圧ショベル用樹木等の切断装置を提供するものである。さらに、本発明は、油圧ショベルの油圧装置をそのまま使用して、コスト安、操作取扱容易、保守管理簡単を達成した油圧ショベル用樹木等の切断装置を提供するものである。
The present invention provides a cutting device such as a tree for a hydraulic excavator that can sequentially cut a tree to be cut by applying a strong cutting force.
In addition, the present invention cuts a tree for a hydraulic excavator, etc., so that attachments and cutting parts attached to the cutting blade, such as trees, can be easily removed without using human power. A device is provided. Furthermore, the present invention provides a cutting device for a hydraulic excavator tree and the like that achieves low cost, easy handling, and simple maintenance management by using the hydraulic device of the hydraulic excavator as it is.
本発明の油圧ショベル用樹木等の切断装置は、油圧ショベル１のアーム２ の先端に上端を固着した本体１０と、前記本体１０の下部に被切断物４０をすくいあげ可能にした凹状曲面に形成されたあご部１１と、一端に本体１０に軸着した遊転軸２３を設け他端に駆動軸２４を設けた刃背部２２とこの刃背部２２の他端部から延びる刃補強部２５と前記刃背部２２の一端と刃補強部２５の先端とに亙って設けられた円弧状鋸刃２１とで構成された扇形状の切断鋸刃２０と、前記遊転軸２３の近傍部において本体１０から突出させて固着したストッパ３０であって、前記切断鋸刃２０にかみ込んだ被切断物４０を除去可能に構成したストッパ３０と、前記刃背部２２と一端が刃背部２２の駆動軸２４を介して軸着され且つ他端が油圧ショベル１のバケットシリンダ３のロッド４の先端に遊転軸４０１を介して軸着されたリンク６と一端が遊転軸４０１に軸着され且つ他端がアームの先端側部分に設けた遊転軸２０１に軸着されたロッドリンク５とアームの先端側部分及び本体10とで構成された四節リンク機構Ｌとを備え、前記バケットシリンダ３のロッド４の作動によって四節リンク機構Ｌを介して刃背部２２を前記遊転軸２３を中心に回転させることで切断鋸刃２０を前記あご部１１に向かって回動可能に構成したものである。 Cutting device for a hydraulic excavator for trees or the like of the present invention, forming the main body 10 which is fixed to the upper end to the tip of the arm 2 of the hydraulic excavator 1, the concave curved surface that enables scooped the object to be cut 40 in the lower portion of the main body 10 and jaws 11 which is a blade portion 22 provided with a drive shaft 24 on the other end provided with a free rotation shaft 23 which is pivotally attached to the body 10 at one end and edge reinforcement portion 25 extending from the other end of the blade portion 22 a fan-shaped cutting saw blade 20 which is constituted by an arcuate saw blade 21 provided over the a tip of one end and the edge reinforcement portion 25 of the blade portion 22, the main body in the vicinity of the free rotatable shaft 23 10 is a stopper 30 that protrudes from and is fixed to the cutting saw blade 20 so that the workpiece 40 can be removed , and the blade back portion 22 and one end of the blade back portion 22 drive shaft 24. And the other end of the hydraulic excavator 1 The idler shaft 201 which pivotally links 6 and one end via the idle shaft 401 to the end of the rod 4 of a bucket cylinder 3 and the other end is pivotally attached to Yu rotating shaft 401 is provided at the tip end portion of the arm and a pivotally mounted rods link 5 and the arm of the distal portion and the four-bar linkage mechanism L comprised of the main body 10, via a four-bar linkage mechanism L by the operation of the rod 4 of the bucket cylinder 3 it is the blade portion 22 that the at switching Dan'nokoha 20 to rotate about the idler shaft 23 and configured to be rotatable toward the jaws 11.
請求項２の油圧ショベル用樹木等の切断装置は、切断鋸刃２０の切っ先２６と隣り合う切っ先２６の前記遊転軸２３まわりの中心角度をａ°とし、遊転軸２３から切っ先２６までの半径と隣り合う切っ先２６までの半径の増加分をｂとし、最初の切っ先２６から最後の切っ先２６までの中心角度をｃ °とし、最初の切っ先２６までの半径と最後の切っ先２６までの半径の増加分をｄとした場合、次の関係式「ｂ ／ ｄ ＝ ａ ／ ｃ」が成り立つように切断鋸刃２０の切っ先２６を配置し、各刃先２７に逃げ角βを設けたものである。 Cutting apparatus trees such as hydraulic excavator according to claim 2, a central angle of about the idler shaft 23 of the cutting edge 26 adjacent to the cutting edge 26 of the switching Dan'nokoha 20 and a °, the free rotation axis 23 until the cutting edge 26 The increment of the radius to the adjacent cutting edge 26 is b, the central angle from the first cutting edge 26 to the last cutting edge 26 is c °, the radius to the first cutting edge 26 and the radius to the last cutting edge 26 In this case, the cutting edge 26 of the cutting saw blade 20 is arranged so that the following relational expression “ b / d = a / c ” is satisfied, and a clearance angle β is provided at each cutting edge 27. .
本発明において、切断鋸刃２０は、扇形の円弧部に鋸刃状の刃先２７を設け、一端に遊転軸２３、他端に駆動軸２４を設けた刃背部２２は、遊転軸２３を支点として、てこ作用で切断力を発揮できると共に、四節リンク機構Ｌ を介してバケットシリンダ３のロッド４の力で直接駆動できるように配慮されている。 In the present invention, the cutting saw blade 20 is provided with a saw blade-shaped cutting edge 27 in a fan-shaped circular arc portion, and a blade back portion 22 provided with a rotating shaft 23 at one end and a drive shaft 24 at the other end is provided with a rotating shaft 23. As a fulcrum, it is considered that the cutting force can be exerted by a lever action and that the rod 4 of the bucket cylinder 3 can be directly driven via the four-bar linkage mechanism L 2.
あご部１１の凹状曲面は樹木等の平均的な外径により定められる。
また、本発明において、切断力を鋭くするため、各切っ先２６と切断鋸刃２０の遊転軸２３中心をむすぶ線に対し各刃先２７が逃げ角βの逃げを設けられ、刃先２７の逃げ角βは、３°〜２０°にすることが好ましい。
The concave curved surface of the jaw portion 11 is determined by an average outer diameter of a tree or the like.
Further, in the present invention, in order to sharpen the cutting force, each blade edge 27 is provided with a relief angle β with respect to the line that forms the center of each cutting edge 26 and the idle shaft 23 of the cutting saw blade 20. β is preferably 3 ° to 20 °.
さらに、本発明において、切り込みを鋭くすると共に、荷重が順次かかって切断力を大きくするために、各切っ先２６を請求項２記載の関係式が成り立つような円弧状に配置することが好ましい。 Furthermore, in the present invention, it is preferable to arrange each cutting edge 26 in an arc shape that satisfies the relational expression of claim 2 in order to sharpen the cut and increase the cutting force by applying the load sequentially.
本発明の油圧ショベル用樹木等の切断装置は、被切断物に対し、切断鋸刃を油圧ショベルのバケットシリンダで駆動することにより、切断装置に油圧シリンダを内蔵した場合に比べ、構造簡単、取扱及び保守管理容易などの利点が生じ、また、剛性の強いストッパを本体に固着することにより、切断刃にかみ込んだ樹木等の切断部分を強力に除去して再切断を容易にできる。
さらに、切断刃の切り込みを四節リンク機構とてこ作用とを用いると共に、切っ先を鋭くすることにより、大きな切断力を発揮できる。
The cutting device for a hydraulic excavator tree, etc. of the present invention has a simple structure and handling compared to the case where a hydraulic cylinder is built in the cutting device by driving the cutting saw blade with a bucket cylinder of the hydraulic excavator for the object to be cut. Further, there are advantages such as easy maintenance management, and by fixing a rigid stopper to the main body, a cutting portion such as a tree biting into the cutting blade can be strongly removed to facilitate recutting .
Furthermore, a cutting force can be exerted by using a four-bar linkage mechanism and a lever action for cutting the cutting blade and sharpening the cutting edge .
本発明を実施する最良の形態について実施例に基づいて説明する。The best mode for carrying out the present invention will be described based on examples.
本発明の実施例が図１乃至図６に示されている。
本発明の実施例に係る油圧ショベル用樹木等の切断装置は、本体１０と、切断鋸刃２０と、ストッパ３０とを備えている。
本体１０は、下部であご部１１が形成され、中間に切断鋸刃２０刃背部２２の遊転軸２３及びストッパ３０を設けたものである。
An embodiment of the present invention is shown in FIGS.
A cutting device such as a tree for a hydraulic excavator according to an embodiment of the present invention includes a main body 10, a cutting saw blade 20, and a stopper 30.
The main body 10 is formed with a jaw portion 11 at the lower portion, and provided with an idle shaft 23 and a stopper 30 of a cutting saw blade 20 blade back portion 22 in the middle.
あご部１１は、被切断物４０をすくいあげができるような、凹状の曲面に形成されている。
切断鋸刃２０は、扇形状に形成されると共に、各刃先２７の切っ先２６と切断鋸刃２０の遊転軸２３の中心を結ぶ線に対し各刃先２７が逃げ角βの逃げを設けた円弧状刃丈２１と、一端に遊転軸２３、他端に駆動軸２４が設けられた刃背部２２と、刃背部２２の他端部から延びると共に反対側に湾曲した刃補強部２５を設けている。円弧状鋸刃２１は刃背部２２の一端と前記刃補強部２５の先端とに亙って設けられ、切断鋸刃２０の遊転軸２３はあご部１１の上端近傍に軸着される。
The jaw portion 11 is formed in a concave curved surface so that the workpiece 40 can be scooped up.
The cutting saw blade 20 is formed in a fan shape, and each cutting edge 27 is provided with a clearance with a clearance angle β with respect to a line connecting the cutting edge 26 of each cutting edge 27 and the center of the rotating shaft 23 of the cutting saw blade 20. An arcuate blade length 21, a blade back portion 22 provided with a rotating shaft 23 at one end and a drive shaft 24 at the other end, and a blade reinforcing portion 25 extending from the other end portion of the blade back portion 22 and curved on the opposite side are provided. Yes. The arc-shaped saw blade 21 is provided over one end of the blade back portion 22 and the tip of the blade reinforcing portion 25, and the rotating shaft 23 of the cutting saw blade 20 is pivotally mounted near the upper end of the jaw portion 11.
図６に示すように、切断鋸刃２０の各刃先２７は、逃げ角βの逃げが設けられており、また、切断鋸刃２０の切っ先２６と隣り合う切っ先２６の前記遊転軸２３まわりの中心角度をａ°とし、遊転軸２３から切っ先２６までの半径と隣り合う切っ先２６までの半径の増加分をｂとし、最初の切っ先２６から最後の切っ先２６までの中心角度をｃ °とし、最初の切っ先２６までの半径と最後の切っ先２６までの半径の増加分をｄとした場合、各刃先２７の切っ先２６をｂ／ｄ＝ａ／ｃの関係が成り立つように配置することにより、円弧状刃丈２１が形成されている。 As shown in FIG. 6, each cutting edge 27 of the cutting saw blade 20 is provided with a relief of a clearance angle β, and the cutting edge 26 adjacent to the cutting edge 26 of the cutting saw blade 20 is around the rotating shaft 23. The central angle is a °, the radius from the rotation axis 23 to the cutting edge 26 and the radius increment from the adjacent cutting edge 26 is b, the central angle from the first cutting edge 26 to the last cutting edge 26 is c °, When the increment of the radius to the first cutting edge 26 and the radius to the last cutting edge 26 is d, the cutting edges 26 of the respective cutting edges 27 are arranged so that the relationship b / d = a / c is established. An arcuate blade length 21 is formed.
四節リンク機構Ｌは、油圧ショベル１のアーム２に固着した本体１０を固定リンク（つまり、アーム２の先端側部分と本体１０を固定リンク）とし、本体１０に遊転軸２３で軸着した切断鋸刃２０の刃背部２２を揺動リンクとし、アーム２の先端側部分に遊転軸２０１で軸着したロッドリンク５を揺動リンクとし、切断鋸刃２０の刃背部２２に駆動軸２４で軸着すると共に、遊転軸４０１でロッドリンク５の先端に軸着したＨ形リンク６を連接リンクとして形成されている。ロッドリンク５の端部とＨ形リンク６の端部がバケットシリンダ３のロッド４の先端に軸着されている。ストッパ３０は、三日月状に形成され、本体１０のうちのあご部１１の上端１０１近傍部且つ遊転軸２３の近傍部の両側面に、切断鋸刃２０をはさむように突出させて固着されている。 In the four-bar linkage mechanism L, the main body 10 fixed to the arm 2 of the hydraulic excavator 1 is a fixed link (that is, the distal end portion of the arm 2 and the main body 10 are fixed links), and is pivotally attached to the main body 10 with a rotating shaft 23. The blade back portion 22 of the cutting saw blade 20 is used as a rocking link, the rod link 5 pivotally attached to the tip side portion of the arm 2 by a free rotating shaft 201 is used as a rocking link, and the drive shaft 24 is mounted on the blade back portion 22 of the cutting saw blade 20. The H-shaped link 6 that is pivotally attached to the tip of the rod link 5 by the free-wheeling shaft 401 is formed as a connecting link. The end of the rod link 5 and the end of the H-shaped link 6 are pivotally attached to the tip of the rod 4 of the bucket cylinder 3. The stopper 30 is formed in a crescent shape, and is fixed by projecting so as to sandwich the cutting saw blade 20 on both side surfaces of the main body 10 in the vicinity of the upper end 101 of the jaw portion 11 and in the vicinity of the rotating shaft 23. Yes.
従って、切断装置を使用する時は、油圧ショベル１のアーム２を駆動し、切断装置のあご部１１を被切断物４０に近づけてすくいあげたのち、図１に示すように、上げた切断鋸刃２０を、バケットシリンダ３によりロッド４を作動し、四節リンク機構Ｌを介して遊転軸２３を中心に回動させて、図３に示すように、切断鋸刃２０の最初の刃先２７から順次被切断物４０に噛み込ませて切断し、刃背部２２のてこ作用により、大きな切断力を発揮することができる。 Therefore, when using the cutting device, the arm 2 of the excavator 1 is driven, and the jaw 11 of the cutting device is scooped up close to the workpiece 40, and then the raised saw blade as shown in FIG. 20, the rod 4 is operated by the bucket cylinder 3, and is rotated about the free rotation shaft 23 via the four-bar linkage mechanism L. As shown in FIG. 3, from the first cutting edge 27 of the cutting saw blade 20. A large cutting force can be exerted by the lever action of the blade back portion 22 by sequentially biting into the workpiece 40 and cutting.
切断が途中で中断したときや、切断後被切断物４０が切断鋸刃２０にかみ込んだときは、図４に示すように、切断鋸刃２０を上方に上げ、被切断物４０を前記ストッパ３０に当接させれば、自動的に樹木等の被切断物４０を除去して再切断が容易になる。 When the cutting is interrupted in the middle or when the workpiece 40 is cut into the cutting saw blade 20 after cutting, as shown in FIG. 4, the cutting saw blade 20 is raised upward, and the workpiece 40 is moved to the stopper. If it makes it contact | abut 30, the to-be-cut object 40, such as a tree, will be removed automatically and recutting will become easy.
本発明の切断装置は、構造簡単、操作容易で量産でき、また、油圧ショベルに取付簡単である。 The cutting device of the present invention is simple in structure, easy to operate, mass-produced, and easy to attach to a hydraulic excavator.
１０ 本体
１１ あご部
１０１ あご部の上端
２０ 切断鋸刃
２１ 円弧状鋸刃
２２ 刃背部
２３、２０１、４０１ 遊転軸
２４ 駆動軸
２５ 刃補強部
２６ 切っ先
２７ 刃先
３０ ストッパ
４０ 被切断物
10 main body 11 jaws 101 jaws of the upper end
2 0 Cutting saw blade 21 Arc-shaped saw blade 22 Blade back portions 23, 201, 401 Sliding shaft 24 Drive shaft 25 Blade reinforcing portion 26 Cutting edge 27 Cutting edge 30 Stopper 40 Object to be cut
Claims (2)
前記本体１０の下部に被切断物４０をすくいあげ可能に凹状曲面に形成されたあご部１１と、
一端に本体１０に軸着した遊転軸２３を設け他端に駆動軸２４を設けた刃背部２２と、この刃背部２２の他端部から延びる刃補強部２５と、前記刃背部２２の一端と刃補強部２５の先端とに亙って設けられた円弧状鋸刃２１とで構成された扇形状の切断鋸刃２０と、
前記遊転軸２３の近傍部において本体１０から突出させて固着したストッパ３０であって、前記切断鋸刃２０にかみ込んだ被切断物４０を除去可能に構成したストッパ３０と、
前記刃背部２２と、一端が刃背部２２の駆動軸２４を介して軸着され且つ他端が油圧ショベル１のバケットシリンダ３のロッド４の先端に遊転軸４０１を介して軸着されたリンク６と、一端が遊転軸４０１に軸着され且つ他端がアーム2の先端側部分に設けた遊転軸２０１に軸着されたロッドリンク５と、アーム２の先端側部分及び本体１０とで構成された四節リンク機構Ｌとを備え、
前記バケットシリンダ３のロッド４の作動によって四節リンク機構Ｌを介して刃背部２２を前記遊転軸２３を中心に回転させることで切断鋸刃２０を前記あご部１１に向かって回動可能に構成したことを特徴とする油圧ショベル用樹木等の切断装置。 A main body 10 having an upper end fixed to the tip of the arm 2 of the excavator 1;
A jaw portion 11 formed in a concave curved surface so as to be able to scoop up the workpiece 40 at the bottom of the main body 10;
The free rotation shaft 23 which is pivotally attached to the body 10 and the blade portion 22 provided with a drive shaft 24 to the other at one end, an edge reinforcement portion 25 extending from the other end of the blade portion 22, the blade portion 22 over to the tip of the one end and the edge reinforcement portion 25 provided with an arc-shaped saw blade 21 and fan-shaped cutting saw blade 20 constituted of,
A stopper 30 that protrudes from the main body 10 and is fixed in the vicinity of the idle shaft 23, and is configured to be able to remove the workpiece 40 that is caught in the cutting saw blade 20;
The blade back portion 22 and a link having one end pivotally attached via the drive shaft 24 of the blade back portion 22 and the other end pivotally attached to the tip of the rod 4 of the bucket cylinder 3 of the excavator 1 via the idler shaft 401. 6, the rod link 5 having one end and the other end is pivotally attached to Yu rotating shaft 401 is pivotally attached to the free rotation shaft 201 provided at the tip end portion of the arm 2, the distal end side portion and the body 10 of the arm 2 And a four-bar linkage mechanism L composed of
Times toward the bucket cylinder 3 of the rod the free rotation shaft 23 is rotated around the switching Dan'nokoha 20 blade portion 22 through the four-bar linkage mechanism L by the operation of 4 to the jaws 11 A cutting device for a tree or the like for a hydraulic excavator, characterized by being configured to be movable.
ｂ ／ ｄ ＝ ａ ／ ｃ
が成り立つように切断鋸刃２０の切っ先２６を配置し、各刃先２７に逃げ角βを設けたことを特徴とする請求項１記載の油圧ショベル用樹木等の切断装置。 The central angle of the cutting edge 26 adjacent to the cutting edge 26 of the cutting saw blade 20 around the rotating shaft 23 is a °, and the radius from the rotating shaft 23 to the cutting edge 26 and the increase in radius to the adjacent cutting edge 26 are b. When the central angle from the first cutting edge 26 to the last cutting edge 26 is c °, and the increment of the radius to the first cutting edge 26 and the radius to the last cutting edge 26 is d, the following relational expression b / d = a / c
The cutting device for a hydraulic excavator tree or the like according to claim 1, wherein cutting edges 26 of the cutting saw blade 20 are arranged so as to hold and a clearance angle β is provided at each cutting edge 27.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004226712A JP4537146B2 (en) | 2004-08-03 | 2004-08-03 | Cutting equipment such as trees for hydraulic excavators |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004226712A JP4537146B2 (en) | 2004-08-03 | 2004-08-03 | Cutting equipment such as trees for hydraulic excavators |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2006042659A JP2006042659A (en) | 2006-02-16 |
| JP2006042659A5 JP2006042659A5 (en) | 2007-05-24 |
| JP4537146B2 true JP4537146B2 (en) | 2010-09-01 |
Family
ID=36021910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2004226712A Expired - Fee Related JP4537146B2 (en) | 2004-08-03 | 2004-08-03 | Cutting equipment such as trees for hydraulic excavators |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4537146B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4751361B2 (en) * | 2007-03-30 | 2011-08-17 | 株式会社飯田鉄工 | Cutting device |
| FI130556B (en) * | 2017-02-28 | 2023-11-17 | Savonlinnan Pr Urakointi Oy | Double acting demolition device and utility machine for demolishing structures |
| CN115024115A (en) * | 2022-07-20 | 2022-09-09 | 江苏泽誉建设工程有限公司 | Trimming machine is used in gardens |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62271619A (en) * | 1986-05-20 | 1987-11-25 | ロイ イ− ラバウンチ | Metallic breaking shearing machine |
| JPH0399941U (en) * | 1990-01-25 | 1991-10-18 | ||
| JP2003094383A (en) * | 2001-09-27 | 2003-04-03 | Masaru Okazaki | Scrap cutting device |
-
2004
- 2004-08-03 JP JP2004226712A patent/JP4537146B2/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62271619A (en) * | 1986-05-20 | 1987-11-25 | ロイ イ− ラバウンチ | Metallic breaking shearing machine |
| JPH0399941U (en) * | 1990-01-25 | 1991-10-18 | ||
| JP2003094383A (en) * | 2001-09-27 | 2003-04-03 | Masaru Okazaki | Scrap cutting device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2006042659A (en) | 2006-02-16 |
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